Gauge itself is analog only, not serial, accepts a linear 0-5 Volt signal air/fuel ratio range is 7.4 to 22.4;Blackout appearance when unpowered

• Innovate Motorsports 3872 DB Series Green 2-1/16 52mm Wideband Gauge with 0-5V Input Linear
• Green

Innovate Motorsports 3872 DB Series Green 2-1/16 52mm Wideband Gauge with 0-5V Input LinearInnovate Motorsports